$(document).ready(function(){
	initWebUploader();
});

function initWebUploader() {
  var uploader = WebUploader.create({
    server: '#',
    pick: {
      "id":'#selectImg',   
      "multiple":false   //禁止多选。     
    },  
    auto: true,
    //分片上传设置
    chunked:true,  //允许分片
    chunkSize:2*1024*1024, //每片大小2M
    chunkRetry:4,  //分片上传失败之后的重试次数
    threads:3,  //上传并发数。允许同时最大3个上传进程
    duplicate:true,

    //上传文件个数限制
    fileNumLimit:1,
    //单个文件大小限制  20M
    fileSingleSizeLimit:20*1024*1024,
    accept: {
      title: 'Images',
      extensions: 'gif,jpg,jpeg,bmp,png',
      mimeTypes: 'image/*'
    },  
    thumb: {
        width: 200,
        height: 200,
        quality: 100,
        allowMagnify: false,
        crop: true,
        type: 'image/jpeg'
    } ,             
  });

  uploader.on( 'fileQueued', function( file ) {
    uploader.makeThumb( file, function( error, ret ) {
      $("#selectImgDiv").empty();
        if ( error ) {
          $("#selectImgDiv").append('<label>预览错误</label>');
        } else {
          $("#selectImgDiv").append('<img alt="" src="' + ret + '" />');
        }
    });
  });

  uploader.on( 'uploadComplete', function( file ) {
    console.log("uploadComplete");
    uploader.reset();
  });
  uploader.on( 'uploadSuccess', function( file ) {
    console.log("uploadSuccess");
  });
  uploader.on( 'uploadError', function( file ) {
    console.log("uploadError");
  });
}